深水天然气管道泄漏的数值模拟研究深水天然气管道泄漏的数值模拟研究.pdfVIP

Advances in Marine Sciences 海洋科学前沿, 2015, 2(4), 84-93 Published Online December 2015 in Hans. /journal/ams /10.12677/ams.2015.24011 Deepwater Gas Pipeline Leak Numerical Simulation Study 1 2 1 Shengdong Zhu , Tianming Ge , Changzhi Zhang 1 CNOOC Deepwater Development Inc., Zhuhai Guangdong 2 Lloyd’s Register Consulting—Energy Inc., Beijing th th th Received: Dec. 5 , 2015; accepted: Dec. 27 , 2015; published: Dec. 30 , 2015 Copyright © 2015 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract This paper presents the numerical simulation results for a subsea gas pipeline release, which was designed to expert high pressure nature gas from Deepwater offshore platform to the onshore re- ceive terminal. 32 leak scenarios were simulated using OLGA® and concluded the initial leak rate, leak duration and released mass weight in 4 water depths, 3 hole sizes and 2 flow rates. The re- search assesses the influence of subsea pipeline’s elevation, riser inventory, subsea safety isola- tion valve, external hydraulic pressure, leak detection, emergency shutdown and blowdown from onshore terminal. The research results could be used as critical input for the further risk analysis and emergency preparedness analysis meanwhile could be the important technical support to emergency response and mitigation actions. Keywords Safety, OLGA, Subsea Pipeline, Emergency Preparedness 深水天然气管道泄漏的数值模拟研究 1 2 1 朱生东 ，葛天明 ，张长智 1 中海石油深海开发有限公司，广东 珠海 2劳氏瑞安咨询